EP 2133631 A2 20091216 - Hot water generator
Title (en)
Hot water generator
Title (de)
Heißwassererzeuger
Title (fr)
Générateur d'eau chaude
Publication
Application
Priority
JP 2008155893 A 20080613
Abstract (en)
A hot water generator which has a high ability to prevent the hot water temperature from rising above a preset temperature when withdrawal of hot water is stopped. A hot water withdrawal pipe 5 of a heat exchanger 1 and a cold water intake pipe 4 thereof are connected through a circulating pipe 40 having a circulating pump 39. A cold water reservoir 42 is provided in the heat exchanger 1 on its cold water intake pipe 4 side. When withdrawal of hot water is stopped, the circulating pump 39 forces hot water in the heat exchanger 1 to circulate through the cold water reservoir 42, cold water intake pipe 4, circulating pipe 40 and hot water withdrawal pipe 5 back to the heat exchanger 1 or the circulating pump 39 forces hot water in the heat exchanger 1 to circulate through the hot water withdrawal pipe 5, circulating pipe 40, cold water intake pipe 4 and cold water reservoir 42 back to the heat exchanger 1. The temperature of circulating hot water is lowered by the cold water reservoir 42 so that the ability to prevent the hot water temperature from rising above a preset temperature is enhanced.
IPC 8 full level
F24D 19/10 (2006.01); F24D 1/08 (2006.01)
CPC (source: EP KR US)
F24D 1/005 (2013.01 - EP US); F24D 1/08 (2013.01 - EP US); F24D 19/1051 (2013.01 - EP KR US); F24H 1/00 (2013.01 - KR); F24H 1/10 (2013.01 - KR); F24H 9/20 (2013.01 - KR); Y02B 30/00 (2013.01 - EP US)
Citation (applicant)
- JP 2002130821 A 20020509 - SPIRAX SARCO LTD
- JP S6041759 U 19850325
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
EP 2133631 A2 20091216; EP 2133631 A3 20120613; EP 2133631 B1 20140219; AU 2009200847 A1 20100107; AU 2009200847 B2 20140206; CN 101603731 A 20091216; CN 101603731 B 20130828; JP 2009300018 A 20091224; JP 4648430 B2 20110309; KR 101585898 B1 20160115; KR 20090129932 A 20091217; US 2009308580 A1 20091217; US 8393383 B2 20130312
DOCDB simple family (application)
EP 09162664 A 20090615; AU 2009200847 A 20090304; CN 200910134295 A 20090416; JP 2008155893 A 20080613; KR 20090020321 A 20090310; US 38323309 A 20090319